Jewel-setter.



R. Et ALDREDGE.

IEWEL SENER,

APPLlCJ-l0l`4 FILED MAY 24. 1917.

Patented Jan. 8, 19M

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JEWEL-SEWER.

insane.

Specification of Iietters'Pa'tent.

Patented dan.. 8., 191e.

Application filed May 24, 1917. Serial No. 170,745.

Tofallrwkom t may concern: c j

Be it Aknown that I, ROBERT E, A-LDREDGE, .arcitizen Vof the United States, vresiding at Pleasant Hill, in the parish of `Sabine and State of Louisiana, Vhave invented certain useful improvements in Jewel-Setters, ot which the following is a specification, reference bei-ng had therein to the accompanying drawing.

The invention relates to a watchmalrers or repairers tool and more particularly to the class of jewel Setters.

The primary object ot' the invention is the provision of a device of this character wherein a jewel can be accurately set in the roller table of a watch without theremova'l of said table from the balance wheel journal or the removal of the hair spring or subjecting the hair spring to heat from a Haine when lapplied in the setting of said jewel within the roller table.

Another obj ect `ot the invention is the provision of a device of `this character wherein the construction'thereot is novel in form to permit the convenient and easy setting of a jewel within the roller table 'for a watch, thusavoiding the `disassembling of the table, the hair spring, the journal and the balance wheel as is usual.

A further object of the invention is the provision of -a setting `device of this character which is simple in construction, thor'- oughly reliable and 4eiiicient in its purpose, handy in use and inexpensive in manufacture.

Vith these and other objects in view the. invention consists in the features of `construction, combination and arrangement of parts -as will be hereinafter fully described, illustrated 'inl the accompanying drawing and pointed out in the claims hereunto appended. p

:In the accompanying drawing:

'Figure *1 is a yperspective view of a jewel setter'constructed in accordance with the invention;

Fig. 2 is an end elevation showing the device applied;

F ig. 3 is a top plan view.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring 'to the drawing in detail the tool or device comprises a pair of levers 5 and 6 respectively, each having litted upon one end thereof a handle 7. The lever 5 is of less length than the lever 6 and is supported for rocking movement upon a pivot 8 between ears 9 ot a bearing strap 10 which embraces the lever 6 and is tast thereon, the pivot 8 being mounted in the ears 9, while fixed to said lever and working against the lever 5 is a leaiQ spring 11 which normally holds the handle ends oli' said lever separated and their opposite ends together. The length of the lever 5 relative to the length of the lever 6 permits the con venient manipulation ot both levers by the fingers of the hand of the operator in the use oi the tool or device in a manner hereinafter set forth.

On the tree end of the lever 5 'at the inner side thereoi is secured a short length plate 12 which constitutes a jaw and this plate lies transversely relative to the length oit the lever 5 and is formed with an outwardly tapered end 13 while provided centrally in the tapered end 13 is a substantially V- shaped slot 14 which extends longitudinally of the plate and provides a space or gap for accommodating the journal A ot the balance wheel B on one side of which is located the hair spring C while on the opposite side is the roller table D as usual ot a watch mechanisni. Mounted on the tree end of the lever G transversely thereof relatively to its length is a plate 15 which is of considerably greater length than the plate 12 and constitutes va companion jaw for co-action with the jaw constituted by the plate 12, and this plate 15 is formed with a tapered end 1G correspondingly to the tapered end 13 of said plate 12 and has provided therein a substantially Veshaped slot 17 which is centrally located and extends longitudinally of the plate 15, the said slot 17 being in register with the slot 14 and is designed to accommodate the journal A for the balance wheel B, the tapered 'end 1G of the plate `15 being gradually beveled at opposite faces so as to render the same relatively lthin at the wider end ot the slot 17 so that the tapered end 1G of said plate 15 can `be freely inserted between the balance wheel B and the roller table D on `the journal A supporting the same and especially when the space between the balance wheel and the :roller table is considerably restricted as is the case of watch mechanismof certain makes.

Fixed in the plate 15 and working through a suitable hole 18 in the plate 1'2 is a guide pin or lug 19 which prevents the displacement of the plates 12 and 15 relatively to each other when the levers are operated for the separation of the plates 12 and 15 or the approach of the same toward each other in the use of the tool or device.

Mounted on the lever 6 immediately at one side of the plate 15 thereon and extending at right angles thereto is a guard wing or plate 20 which prevents a Haine from a lamp playing upon either the balance wheel or the hair spring when in the act of heating` shellac or cement upon the roller table D in the setting of the jewel therein. rI`he plate 15 is preferably made from coppei` so as to retain heat when a flame from a lamp is played thereon and this plate constitutes a heat carrier so that heat therefrom will be transferred to the roller table D which as usual is provided with a hole or aperture for receiving the jewel E, the latter being ina pin form and is set by the hardening of shellac or cement which isV applied by the introduction thereof into the hole or aperture for the jewel E. f

In the use of the tool or device when it is desired to accurately set the jewel E in the roller table D without iemoving the roller table from the journal A for the balance wheel B or the removal of the hair spring C from said journal the user of the tool or device compresses the handles 7 on the levers 5 and 6 to lock the lever 5 relatively to the lever 6 against the action of the spring 11 and in this manner the jaws 12 and 15 are separated whereupon the jaw 15 at its tapered end 16 is inserted in the space between the balance wheel B and the roller table D and thereafter pressure is relieved from the levers so that the jaw 12 will rest against the top face of the roller table D and will co-act with the jaw 12 for the clamping of said roller table. The slots 14 and 17 in the respective jaws provide space for accommodating the journal A carrying the balance wheel B, hair spring C and roller table D, it being of course understood that these parts have been previously removed from the frame of the watch structure. In the clamping of the roller table D between the plates 12 and 15 itis necessary that the aperture or hole in said roller table will be exposed at the wider ends of the slots 14:. and 17 so that the jewel E can be readily inserted in the hole' or aperture in the use of tweezers.

Now when the roller table D has been clamped, the operator of the tool or device applies the flame from an alcohol lamp on to the tail or heel end of the plate 15 which latter becomes heated and said flame is preto the roller table D so that shellac or cement which is placed within the aperture or hole for the jewel becomes softened thereby enabling the accurate and proper setting of the jewel E within the hole or aperture in said roller table. On the hardening of the shellac or cement the jewel E is made fast in the roller table. VThus in the use of the tool it will be obvious that the jewel E can be readily setin the roller table D without removing the roller table from the journal A or the removal of the balance wheel or hair spring which is usually necessary in the setting of the jewel in the roller table.

From the foregoing it is thought that the construction and manner of operation of the device will be clearly understood and therefore a more extended explanation has been omitted. Y

What is claimed is: j

1. A device of the character described comprising a pair of pivotally connected levers,plates secured transversely to the respective levers and having companion tapered ends each formed with a central bifurcation providing a slot, one of said plates being longer than the other, a guard depending at right angles to the longer plate and carried by the lever supporting the same, means.resilientlyracting upon the levers to hold the plates normally together, and a guideV pin mounted in one of the plates and loosely working through the other plate o to prevent 'relative displacement of the plates when moving toward and away from each other.

2. A device of the character described comprising a pair of pivotally connected levers, plates secured transversely to the respective levers and having companion ta'- pered ends each formed with a central bifurcation providing a slot, one of said plates being longer than the other, a guard depending at right angles to the longer plate and carried by the lever supporting the same, means resiliently acting upon the le-` vers to hold the plates normally together, a guide pin mounted in one of the plates and loosely working through the other plate to prevent relative displacement of the plates when moving toward and away from each other, and one of said levers being of greater length than the other.

In testimony whereof I aflix my signature.

ROBERT ErALDREDGE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

